. >>> president owe boom ma got his most pour -- obama got his most powerful endorsement yet. former president bill clinton enthralled the audience of delegates. >> he delivered an impassioned speech about why he believes president obama deserves a second term. kristin fisher has the highlights. she joins us live this morning. >> reporter: good morning. bill clinton was classic bill clinton last night. he ignored the teleprompter. he improvised lines and even though he shockingly took the stage early, he still ran late. he delivered a 48-minute long prime time speech. that's longer than his infamous convention keynote address back in 1998. but you know what? the delegates loved it. >> no president, no president, not me, not any of my predecessors, no one could have fully repaired all the damage that he found in just four years. when congressman ryan looked into that tv camera and attacked president obama's medicare savings as, quote, the biggest, coldest, power play, i didn't know whether to laugh or cry. because that $716 billion is exactly to the dollar the same amount of me